single word requests - 1000 Day "Anniversary"

"Anniversary" comes from Latin: "anni" [genitive of annus = year] + "vers(us)" [past participle of vertere = to turn]. I am interested in constructing a similar word which means "reoccurring every 1000 days".

"One thousand", in Latin, is mille and the genitive plural of "day" is dierum. Hence: mille-dierum-versary. However, this doesn't sound brilliant -- I know very little about Latin, so am not sure how its affixation works -- so does anyone have any better suggestions?

Answer

The Urban Dictionary lists an obvious choice: kiloversary, also known as k-day.

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